Skip to content

All guides

GCSE Science command words: describe, explain and evaluate

The first word of the question tells you what kind of answer earns the marks.

What the common command words ask for

  • State or give: a short fact, no explanation needed.
  • Describe: say what happens, in order, without saying why.
  • Explain: say what happens and why, using “because” and the science.
  • Compare: give similarities and differences, each tied to the same point.
  • Evaluate: give points for and against and reach a judgement.
  • Calculate: show the working, then the answer with its unit.

A quick way to check your answer

  • Look at the marks: a 3-mark question needs three separate points.
  • Use the key terms from the topic, spelled correctly.
  • For “explain”, check every sentence links a cause to an effect.

Practise with feedback

PrepAcer marks written answers against the mark points and shows which were met or missed, so you can see exactly what a good answer needs.

Try GCSE Science free. No card needed.

Start the free sample